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More docs for cursor

This commit is contained in:
Dan Holmsand 2015-02-02 22:14:57 +01:00
parent 600d6bbb59
commit 9260d9b74b
1 changed files with 5 additions and 1 deletions
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6
src/reagent/core.cljs
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@ -229,13 +229,17 @@ the specified path within the wrapped Reagent atom. e.g.,
The first parameter can also be a function, that should look something The first parameter can also be a function, that should look something
like this: like this:
(defn digit-filter (defn set-get
([k] (get-in @state k)) ([k] (get-in @state k))
([k v] (swap! state assoc-in k v))) ([k v] (swap! state assoc-in k v)))
The function will be called with one argument – the path passed to The function will be called with one argument – the path passed to
cursor – when the cursor is deref'ed, and two arguments (path and new cursor – when the cursor is deref'ed, and two arguments (path and new
value) when the cursor is modified. value) when the cursor is modified.
Given that set-get function, (and that state is a Reagent atom, or
another cursor) these cursors are equivalent:
(cursor state [:foo]) and (cursor set-get [:foo]).
" "
([src path] ([src path]
(ratom/cursor src path))) (ratom/cursor src path)))